Grade 42 Ashless Filter Paper for Instrumental Analysis, 460x570mm Sheet, 100/Pk SKU: 1442-917

Quantitative Ashless Filter Paper - 1442-917

Environmental and pharmaceutical laboratories running ignition-based assays need ashless paper that meets their method's blank specifications. Each production lot is tested for ash content and documented with a certificate to support analytical traceability requirements. In practice, documented grade specifications provide laboratories with the technical data needed to select appropriate papers without preliminary testing.

Key Filter Paper Characteristics

• Tightly controlled manufacturing produces documented ash content that remains consistent across production lots for method reproducibility.
• Acid washing process removes metallic contaminants that could interfere with trace element determinations after ignition.
• Pure cellulose fiber construction without hardening treatment ensures minimal chemical background in filtered samples.
• Controlled ash level of <0.007% meets the blank value requirements of quantitative methods where filter contribution must be documented.
• Basis weight of 100g/m² indicates the fiber mass per unit area that controls retention, flow rate, and wet strength.

When your analytical procedure specifies a particular grade, the retention and purity characteristics documented above confirm method compliance. With these demands in mind, fine fiber construction provides the mechanical integrity you need to transfer collected precipitates to the crucible without sample loss. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Dimensions

460 x 570mm

Flow Speed

Slow

Folded/ Fluted/ Pleated

No

Grade

42

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.007%

Nominal Basis Weight (g/ m²)

100g/m²

Pack Count

100

Particle Retention

2.5um

Pore Size (µm)

2.5

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Lead Quantification - Captures lead sulfate precipitate for gravimetric determination in environmental and industrial samples.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.
• Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.
• Iron Determination - Collects iron hydroxide precipitate for gravimetric determination in ore assay and environmental analysis.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.